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2022

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The cutting edge of automobile lightweight -- aerospace grade ultralight and high strength magnesium lithium alloy


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The light weight of the automobile is to reduce the servicing quality of the automobile as much as possible on the premise of ensuring the strength and safety performance of the automobile, so as to improve the power performance of the automobile, reduce fuel consumption and reduce exhaust pollution. Experiments have shown that if the vehicle mass is reduced by half, the fuel consumption will also be reduced by nearly half. Due to the need of environmental protection and energy saving, the lightweight of automobile has become the trend of the world automobile development.

 

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  Simple structure diagram of automobile

The main way of lightweight;
①The main specifications of the automobile models are continuously optimized,and the structural strength of the whole vehicle is improved and the consumption of consumables is reduced on the premise that the main parameters of the specifications are retained;
②Lightweight materials are used.Such as aluminum,magnesium,ceramics,plastics,glass fiber and carbon fiber composite materials.
③The structure is designed by computer.Such as finite element analysis and local strengthening design;
④Adopt load-bearing body to reduce the thickness of body sheet.
Among them,the current main vehicle lightweight measures are mainly using lightweight materials.
Why is aerospace grade ultra light and high strength magnesium lithium alloy called the cutting edge of automobile lightweight?What unique advantages does it have that make designers highly favored?
Follow the Xiaobian to reveal one by one;
The main points are as follows:;
1.Ultra light;The density of magnesium itself is not high,only 1.74g/cm³,Because of the addition of lithium,the density decreased to 1.3-1.6g/cm³,It is the metal alloy material with the lowest density at present.It is 40%-50%lighter than aluminum alloy and 20%-30%lighter than magnesium alloy,which can better achieve the weight reduction effect and meet the ultimate pursuit of automobile lightweight.
2.Tensile strength;The tensile strength of Mg Li alloy can reach 260-320mpa,
3.Excellent anti vibration and noise reduction performance;It has a large internal friction coefficient,can consume energy in the metal,and can effectively improve the stability of the product.
4.Excellent electromagnetic shielding performance;Magnesium lithium alloy has certain shielding effect on electromagnetic waves of different bands,and improves the safety of equipment.
5.High thermal conductivity;The thermal conductivity of magnesium lithium alloy w/(m•K)(100℃)is 70-80,which can achieve good heat dissipation.
6.Good cold and hot forming machinability;It has a variety of processing technologies such as stamping,die casting,extrusion,spinning and CNC,
7.Rich surface treatment technology;Magnesium lithium alloys can be applied to various surface treatment processes such as anodizing,conductive oxidation,maintenance oxidation,spraying,electrophoresis,electroplating,
8.Green environmental protection materials;Magnesium lithium alloy leftovers,wastes,cutting materials and other recyclable and RE refined green environmental protection.
Application of magnesium lithium alloy;

 

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National policies;

 

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Magnesium lithium alloy, with its unique advantages, has a strong presence in the large family of automobiles, adding more help to the lightweight road.
  

The only qualified supplier of magnesium lithium alloy of China Aerospace Science and Technology Group

 

Sifang

 

Xi'an Sifang ultra light material magnesium lithium alloy helps the aerospace industry to seek the world again
Magnesium lithium alloy specification;
Magnesium lithium alloy

 

Sifang

 

Magnesium lithium alloy specification; Ingots, rolled plates (as thin as 1mm), forged plates, extruded bars, special-shaped parts, cast parts, and foil materials (as thin as 0.03mm). Excellent performance enables it to be processed into various profiles, meeting the different needs of various fields for structure.

trend,world,automobile